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LAWRENCE & ASSOCIATES <br /> Engineering Geologists • Ground-water Hydrologists <br /> 2001 MARKET ST., RM. 523 <br /> REDDING, CALIFORNIA 96001 <br /> TELEPHONE(916)244-9703 DAVID A. LAWRENCE, C.E.G.618 <br /> C88 . 11. 03 <br /> August 2 , 1989 W �� b <br /> Mr. Mike Huggins Au u ,j 1989 <br /> San Joaquin Local Health District <br /> 1601 East Hazalton Avenue F-NVIRONMENTALHEALT!' <br /> P.O. BOX 2009 7Fn�AIT ISERN/Irr- <br /> Stockton, CA 95201 <br /> Dear Mike: <br /> SUBJECT: SIMPSON PAPER COMPANY, RIPON: <br /> (1) OUT-OF-SERVICE PERMITS, WELLS 1 & 2 <br /> (2) ADDITIONAL DATA DRILLING PERMITS, WELLS 4 & 5 <br /> Out-of-service permits, Wells 1 & 2 <br /> Enclosed are: <br /> (1) 2 checks for $50 each (one for each permit) <br /> (2) Permit application for out-of service Well No. 1 <br /> (3) Permit application for out-of-service Well No. 2 <br /> (4) Project location map (Figure 1) <br /> (5) Location map of out-of-service Wells Nos. 1 & 2 (Figure 2) <br /> Additional data drilling permits, Wells Nos. 4 & 5 <br /> Enclosed is an untitled figure showing an E-log section opposite <br /> completion details of TH-1 and TH-3 . Note the thick sand from <br /> about 86 feet to 108 feet which will be intercepted with the <br /> upper screened interval from 90 to 110 feet. This is the reason <br /> for setting the depth of the grout seal to 84 feet. It allows me <br /> about 4 feet of safety margin above the top of the screen, and <br /> allows the grout seal to be landed in the clay occurring between <br /> 80 and 86 feet. <br /> On the left side of the figure are shown three zones--upper, <br /> middle, and lower. The middle zone has a TDS of only 229 mg/1, <br /> which is lower than the zones occurring above and below. The <br /> middle zone reflects the zone we will be producing from in the <br /> new wells 4 and 5. <br /> The quality of the middle and lower zones were determined from <br /> TH-3 and TH-1, respectively (TH-2 was not drilled) . The quality <br />